18372818370 has 64 divisors (see below), whose sum is σ = 46084598784. Its totient is φ = 4678998720.

The previous prime is 18372818327. The next prime is 18372818371. The reversal of 18372818370 is 7381827381.

It is not an unprimeable number, because it can be changed into a prime (18372818371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 422965 + ... + 464375.

It is an arithmetic number, because the mean of its divisors is an integer number (720071856).

Almost surely, 2^18372818370 is an apocalyptic number.

18372818370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 18372818370, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23042299392).

18372818370 is an abundant number, since it is smaller than the sum of its proper divisors (27711780414).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18372818370 is a wasteful number, since it uses less digits than its factorization.

18372818370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42087.

The product of its (nonzero) digits is 451584, while the sum is 48.

The spelling of 18372818370 in words is "eighteen billion, three hundred seventy-two million, eight hundred eighteen thousand, three hundred seventy".